991072166122560

Names of 991072166122560

• Cardinal: 991072166122560 can be written as Nine hundred ninety-one trillion, seventy-two billion, one hundred sixty-six million, one hundred twenty-two thousand, five hundred sixty.

Scientific notation

• Scientific notation: 9.9107216612256 × 10¹⁴

Factors of 991072166122560

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1032366839721

Divisors of 991072166122560

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 1032366839711 2064733679422 3097100519133 4129467358844 5161834198555 6194201038266 8258934717688 10323668397110 12388402076532 15485502595665 16517869435376 20647336794220 24776804153064 30971005191330 33035738870752 41294673588440 49553608306128 61942010382660 66071477741504 82589347176880 99107216612256 123884020765320 165178694353760 198214433224512 247768041530640 330357388707520 495536083061280 991072166122560
• Sum of all divisors σ(n): 3146654127442176
• Sum of proper divisors (its aliquot sum) s(n): 2155581961319616
• 991072166122560 is an abundant number, because the sum of its proper divisors (2155581961319616) is greater than itself. Its abundance is 1164509795197056

Bases of 991072166122560

• Binary: 11100001010101111111111000011010001001010001000000₂
• Hexadecimal: 0x3855FF8689440
• Base-36: 9RB09MZFPC

Squares and roots of 991072166122560

• 991072166122560 squared (991072166122560²) is 982224038462863165344940953600
• 991072166122560 cubed (991072166122560³) is 973454905417038485994035277571133460873216000
• The square root of 991072166122560 is 31481298.6727447443
• The cube root of 991072166122560 is 99701.5154938439

Scales and comparisons

• 991,072,166,122,560 seconds is equal to 31,513,029 years, 15 weeks, 2 days, 10 hours, 56 minutes.
• To count from 1 to 991,072,166,122,560 would take you about seventy-eight million, seven hundred eighty-two thousand, five hundred seventy-three years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 991072166122560 cubic inches would be around 8308.5 feet tall.

Recreational maths with 991072166122560

• 991072166122560 backwards is 065221661270199
• The number of decimal digits it has is: 15
• The sum of 991072166122560's digits is 57
• More coming soon!